Double-layer extensible multi-chain zipper

Abstract

The utility model discloses a double-layer extensible multi-chain zipper, which comprises a cloth tape group, a second single-layer cloth tape and a puller, the cloth tape group comprises an extensible cloth tape and a first single-layer cloth tape, the extensible cloth tape is fixedly connected with one end of the first single-layer cloth tape, and the fixedly connected part is defined as a fixed end; a first zipper tooth row is arranged in the extending direction of the fixed end, a second zipper tooth row is arranged in the extending direction of the second single-layer cloth belt, and the first zipper tooth row and the second zipper tooth row can be meshed with each other and separated from each other. One side, far away from the second single-layer cloth belt, of the cloth belt group is connected with the third single-layer cloth belt through a single-chain tooth strip, so that compared with a mode that a plurality of parallel zippers are arranged on one cloth belt, the multiple cloth belts are arranged, and the zippers are arranged at the connecting positions of the two cloth belts, so that the acting force is dispersed, and the cloth belt group is more attractive in appearance. When the double-layer extensible multi-chain zipper is applied to the luggage, the safety and durability of the luggage are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of zippers, and in particular relates to a double-layer extensible multi-chain zipper. Background Art

[0002] The zipper was originally invented as a fastener to connect the two sides of a garment, but with the development of textile technology, zippers and tapes are used together in more and more scenarios, especially in travel. The tapes with zippers used in suitcases and bags have good closing effects, and play a vital role in preventing items in suitcases and bags from being lost.

[0003] When zippers are used for boxes and bags with multiple layers, multiple parallel zippers are usually set on a cloth belt. The zippers are provided with pullers. Pulling any one of the pullers will generate a pulling force on the cloth belt. After long-term use or repeated pulling, the strength of the cloth belt is easily reduced and the service life is shortened. On the other hand, when the bags are placed on transportation vehicles or in public places with high mobility of people, the items in the bags are at risk of being stolen. The existing zippers can only be protected by locking them, but the effect is average. Utility Model Content

[0004] The utility model aims to provide an expandable multi-chain zipper which can effectively prevent bursting, so as to solve at least one of the above-mentioned technical problems.

[0005] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0006] A double-layer expandable multi-chain zipper, comprising:

[0007] The tape set and a second single layer of tape; and

[0008] pull head;

[0009] The cloth belt group includes an extended cloth belt and a first single-layer cloth belt, an end of one side of the extended cloth belt is fixedly connected to an end of one side of the first single-layer cloth belt, and the fixedly connected part is defined as a fixed end;

[0010] The fixed end is provided with a first chain tooth row on its inner side, and a second chain tooth row is provided at a corresponding position of the second single-layer cloth tape, and the first chain tooth row and the second chain tooth row can be engaged with and separated from each other; the slider is provided between the first chain tooth row and the second chain tooth row, and is used for pulling the first chain tooth row and the second chain tooth row together and / or apart;

[0011] It also includes a third single-layer cloth tape, and the side of the first single-layer cloth tape away from the fixed end is connected to the third single-layer cloth tape; the side of the first single-layer cloth tape away from the fixed end and the third single-layer cloth tape are respectively provided with single-layer chain tooth strips that can bite each other, and the single-layer chain tooth strip is provided with a third slider, and the third slider is slidably connected to the single-layer chain tooth strip for making the single-layer chain tooth strip bite and / or disengage.

[0012] Through such an arrangement, the cloth tape group and the second single-layer cloth tape are engaged and disengaged with each other through the first chain tooth row and the second chain tooth row, and the side of the cloth tape group away from the second single-layer cloth tape is connected to the third single-layer cloth tape through the single-layer chain tooth strip. Compared with setting multiple parallel zippers on one cloth tape, the utility model disperses the force by setting multiple cloth tapes and setting zippers at the connection between the two cloth tapes. When the double-layer expandable multi-chain zipper of the utility model is applied to luggage, the safety and durability of the luggage are greatly improved; in addition, when the slider between the cloth tape group and the second single-layer cloth tape is locked relative to the luggage, the third slider can be pulled, but what is revealed after being pulled open is the expanded cloth tape, which has a misleading effect and can further enhance the safety of the luggage.

[0013] Preferably, the first tooth row includes a pair of parallel tooth strips symmetrically arranged on both sides of the fixed end;

[0014] The second coupling tooth row includes a pair of parallel coupling tooth strips symmetrically arranged on two sides of the second single-layer cloth tape.

[0015] Preferably, there are two pullers between the cloth tape group and the second single-layer cloth tape, namely a first puller and a second puller;

[0016] When the first slider and the second slider are pulled along the first tooth row and the second tooth row toward opposite directions, the first tooth row and the second tooth row are engaged with each other;

[0017] When the first slider and the second slider are pulled along the first element row and the second element row toward opposite directions, the first element row and the second element row are disengaged from each other.

[0018] Preferably, the expansion tape is an elastic expansion tape.

[0019] Preferably, the side of the first single-layer cloth tape facing away from the extended cloth tape is defined as the front side, and the side facing the extended cloth tape is defined as the back side, and the first slider and the second slider are provided with pull noses for installing pull tabs, and the pull noses of the first slider and the second slider face the front side.

[0020] Preferably, the single chain tooth strip is arranged toward the extended cloth tape, and the projection of the single chain tooth strip toward the reverse side falls on the extended cloth tape, and the third slider is provided with a pull nose for installing a pull tab, and the pull nose of the third slider faces the front side.

[0021] Preferably, the extension direction of the single chain tooth strip is parallel to the extension direction of the first chain tooth row.

[0022] More preferably, the extending direction of the single chain tooth strip is defined as the length direction, and the direction from the first single-layer cloth tape to the third single-layer cloth tape is defined as the width direction;

[0023] The width of the extended fabric tape is greater than the sum of the widths of the first single-layer fabric tape and the third single-layer fabric tape.

[0024] Preferably, the fixed end is configured as a needle and thread suture type fixed connection.

[0025] Preferably, the width of the expanded telescopic cloth belt is greater than the width of the second single-layer cloth belt and the third single-layer cloth belt.

[0026] Beneficial effects:

[0027] The utility model provides a double-layer expandable multi-chain zipper, comprising a tape group, a second single-layer tape and a slider, wherein the tape group comprises an extended tape and a first single-layer tape, one end of the extended tape and the first single-layer tape are fixedly connected, and the fixedly connected part is defined as a fixed end; a first chain tooth row is provided in the extending direction of the fixed end, and a second chain tooth row is provided in the extending direction of the second single-layer tape, and the first chain tooth row and the second chain tooth row can be engaged with and disengaged from each other; and a third single-layer tape is also included, and a side of the tape group away from the second single-layer tape is connected to the third single-layer tape The zippers are connected by a single chain tooth strip. Compared with arranging multiple parallel zippers on a cloth tape, the utility model arranges multiple cloth tapes and arranges a zipper at the connection between two cloth tapes to disperse the force. When the double-layer expandable multi-chain zipper of the utility model is applied to luggage, the safety and durability of the luggage are greatly improved. In addition, when the slider between the cloth tape group and the second single-layer cloth tape is locked relative to the luggage, the third slider can be pulled, but what is revealed after being pulled open is the expanded cloth tape, which has a misleading effect and can further enhance the safety of the luggage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural diagram of an expandable multi-chain zipper according to an embodiment of the utility model;

[0029] Figure 2 The expandable multi-chain zipper of the utility model is distinguished from Figure 1 Direction stereogram;

[0030] Figure 3 The expandable multi-chain zipper of the utility model is distinguished from Figure 1 , Figure 2 Direction stereogram;

[0031] Figure 4 A three-dimensional structural diagram of an embodiment of the utility model and a slider connected thereto;

[0032] Figure 5 This is a three-dimensional structural diagram of the integrated expandable zipper after the embodiment of the utility model is hidden;

[0033] Figure 6 For along Figure 1 Sectional view in the AA direction;

[0034] Figure 7 To distinguish Figure 1 Another embodiment of the invention;

[0035] Figure 8 To distinguish Figure 1 and Figure 7 Another embodiment of the invention;

[0036] Fig. 9 To distinguish Figure 1 , Figure 7 and Figure 8 Another implementation method of .

[0037] Reference numerals

[0038] 1-tape group; 11-extended tape; 12-first single-layer tape; 13-fixed end; 2-second single-layer tape; 3-third single-layer tape; 4-first slider; 41-positioning hole; 5-second slider; 6-third slider; 7-first chain tooth row; 8-second chain tooth row; 9-single chain tooth strip. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0040] The technical solution of the utility model is described in detail below with specific embodiments.

[0041] Please also read Figures 1 to 3The utility model embodiment discloses a double-layer expandable multi-chain zipper, including a tape group 1, a second single-layer tape 2 and a pull head. The end of the tape group 1 is provided with a first chain tooth row 7, and the end of the second single-layer 2 is provided with a second chain tooth row 8. The first chain tooth row 7 and the second chain tooth row 8 can engage with and disengage from each other. The pull head is slidably arranged between the first chain tooth row 7 and the second chain tooth row 8, and is used to pull the first chain tooth row 7 and the second chain tooth row 8 together and / or apart.

[0042] Specifically, the tape set 1 includes an extended tape 11 and a first single-layer tape 12, one end of the extended tape 11 and the first single-layer tape 12 are fixedly connected, and the fixedly connected portion is defined as a fixed end 13; a first chain tooth row 7 is provided in the extending direction of the fixed end 13, and a second chain tooth row 8 is provided in the extending direction of the second single-layer tape 2, and the first chain tooth row 7 and the second chain tooth row 8 can be engaged and disengaged with each other, please refer to Figures 4 to 6 The first chain tooth row 7 includes a pair of parallel chain tooth strips, which are arranged on both sides of the fixed end 13, and the second chain tooth row 8 includes a pair of parallel chain tooth strips, which are arranged on both sides of the second single-layer cloth tape 2. With this arrangement, compared with the single-layer chain tooth strip, the fixing effect between the first chain tooth row 7 and the second chain tooth row 8 using the double-layer chain tooth strip is better. Even if the chain tooth strip on one side is exploded, the chain tooth strip on the other side still has a closing function. When the expandable multi-chain zipper of the utility model embodiment is applied to luggage, the safety and durability of the luggage can be greatly improved.

[0043] It can be understood that the expansion tape 11 in the present embodiment is configured as a retractable expansion tape, has a certain elasticity, and has a good deformation effect. When the expandable multi-chain zipper of the present embodiment is applied to luggage, even if there are too many objects in the luggage, which have a pushing force on the zipper, the expansion tape 11 can also elastically extend to alleviate the pushing force, and cooperate with the first chain tooth row 7 and the second chain tooth row 8 to reduce the risk of the zipper bursting.

[0044] Preferably, the fixed end 13 is configured as a needle-and-thread suture fixed connection to ensure the stability of the connection while ensuring the aesthetics.

[0045] Furthermore, there are two sliders between the tape group 1 and the second single-layer tape 2, namely the first slider 4 and the second slider 5; when the first slider 4 and the second slider 5 are pulled toward opposite directions along the first chain tooth row 7 and the second chain tooth row 8, the first chain tooth row 7 and the second chain tooth row 8 are engaged with each other; when the first slider 4 and the second slider 5 are pulled toward opposite directions along the first chain tooth row 7 and the second chain tooth row 8, the first chain tooth row 7 and the second chain tooth row 8 are disengaged from each other. With such a configuration, when the zipper of this embodiment is applied to bags, compared with a single slider, two sliders with opposite locking directions can engage and disengage the chain more conveniently and quickly, thereby improving the operating efficiency, and the movement amplitude does not need to be too large, and both hands can be pulled synchronously, which reduces the labor intensity compared with single-handed operation.

[0046] Furthermore, if Figure 3 As shown, the first slider 4 and the second slider 5 in this embodiment are respectively provided with positioning holes 41. When the first slider 4 and the second slider 5 abut against each other, a lock can be used to pass through the positioning holes 41 on the two sliders to lock the two sliders together, so that the two sliders cannot be pulled in opposite directions, thereby enhancing the safety of the luggage.

[0047] In addition, the expandable multi-chain zipper of the embodiment of the utility model also includes a third single-layer cloth tape 3, and the side of the first single-layer cloth tape 12 away from the fixed end 13 is connected to the third single-layer cloth tape 3. Specifically, the connection method is a zipper connection, and the side of the first single-layer cloth tape 12 away from the fixed end 13 and the third single-layer cloth tape 3 are respectively provided with single chain teeth 9 that can bite each other, and the single chain tooth strip 9 is provided with a third slider 6, and the third slider 6 is slidably connected to the single chain tooth strip 9 for engaging and / or disengaging the single chain tooth strip 9.

[0048] Preferably, the extending direction of the single chain element strip 9 is parallel to the extending direction of the first chain element row 7 (and the second chain element row 8 ).

[0049] Further, the side of the first single-layer fabric tape 12 facing away from the extended fabric tape 11 is defined as the front side, and the side facing the extended fabric tape 11 is defined as the back side. Figure 1 The axial perspective is the front view, Figure 2 The axial perspective is the reverse side, the first slider 4 and the second slider 5 are respectively provided with a pull nose for installing a pull tab, and the first slider 4 and / or the second slider 5 can be pulled to move by pulling the pull tab, and the pull noses of the first slider 4 and the second slider 5 face the front side, and the third slider 6 is also provided with a pull nose for installing a pull tab, and the pull nose also faces the front side; Figure 5 As shown, the single chain tooth strip 9 is arranged toward the extended cloth tape 11 , and the projection of the single chain tooth strip 9 toward the reverse side falls on the extended cloth tape 11 .

[0050] Furthermore, the extension direction of the single chain tooth 9 is defined as the length direction, and the direction from the first single-layer cloth tape 12 to the third single-layer cloth tape 3 is defined as the width direction; the width of the extended cloth tape 11 is greater than the sum of the widths of the first single-layer cloth tape 12 and the third single-layer cloth tape 3, and the width of the extended cloth tape 11 is greater than the widths of the second single-layer cloth tape 2 and the third single-layer cloth tape 3.

[0051] With such arrangement, when the first slider 4 and the second slider 5 are locked by the lock through the positioning hole 41, only the third slider 6 can be pulled open, but the part revealed after being pulled open is not the storage space in the bag, but the extended cloth belt 11. Such arrangement has a misleading effect, which can further enhance the safety of the bag and play an anti-theft role.

[0052] On the other hand, the single chain tooth bar 9 can also be configured to face the front side, such as Figure 7As shown; and the first tooth row 7 and the second tooth row 8 can also be configured as a single row, please refer to Figure 8 and Fig. 9 , Figure 8 The first chain tooth row 7 and the second chain tooth row 8 are single-row chain teeth, and the single chain tooth strip 9 faces the front; Fig. 9 The first chain tooth row 7 and the second chain tooth row 8 are single-row chain teeth, and the single chain tooth strip 9 faces the reverse side. Such an implementation also falls within the protection scope of the present utility model.

[0053] In summary, the utility model provides a double-layer expandable multi-chain zipper, comprising a tape group 1, a second single-layer tape 2 and a slider, wherein the tape group 1 comprises an extended tape 11 and a first single-layer tape 12, one end of the extended tape 11 and the first single-layer tape 12 are fixedly connected, and the fixedly connected part is defined as a fixed end 13; a first chain tooth row 7 is provided in the extending direction of the fixed end 13, and a second chain tooth row 8 is provided in the extending direction of the second single-layer tape 2, the first chain tooth row 7 and the second chain tooth row 8 can be engaged with and disengaged from each other, and the side of the tape group 1 away from the second single-layer tape 2 is connected to the third chain tooth row 8. The single-layer cloth tape 3 is connected by a single chain tooth strip 9. Compared with setting multiple parallel zippers on one cloth tape, the utility model sets multiple cloth tapes and sets a zipper at the connection between two cloth tapes to disperse the force. When the double-layer expandable multi-chain zipper of the utility model is applied to luggage, the safety and durability of the luggage are greatly improved; in addition, when the slider between the cloth tape group 1 and the second single-layer cloth tape 2 is locked relative to the luggage, the third slider 6 can be pulled, but what is revealed after being pulled open is the expanded cloth tape 11, which has a misleading effect and can further enhance the safety of the luggage.

[0054] The above is a detailed description of an embodiment of a double-layer expandable multi-chain zipper provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A double-layer expandable multi-chain zipper, characterized in that: include: A cloth tape group (1) and a second single-layer cloth tape (2); as well as pull head; The cloth belt group (1) comprises an extended cloth belt (11) and a first single-layer cloth belt (12), an end portion of one side of the extended cloth belt (11) is fixedly connected to an end portion of one side of the first single-layer cloth belt (12), and the fixedly connected portion is defined as a fixed end (13); The fixed end (13) is provided with a first chain tooth row (7) on its inner side, and a second chain tooth row (8) is provided at a corresponding position of the second single-layer cloth tape (2), and the first chain tooth row (7) and the second chain tooth row (8) can be engaged with and separated from each other; the pull head is provided between the first chain tooth row (7) and the second chain tooth row (8), and is used for pulling the first chain tooth row (7) and the second chain tooth row (8) together and / or apart; It also comprises a third single-layer cloth tape (3), wherein the side of the first single-layer cloth tape (12) away from the fixed end (13) is connected to the third single-layer cloth tape (3); the side of the first single-layer cloth tape (12) away from the fixed end (13) and the third single-layer cloth tape (3) are respectively provided with single-layer chain tooth strips (9) that can bite each other, and the single-layer chain tooth strip (9) is provided with a third slider (6), and the third slider (6) is slidably connected to the single-layer chain tooth strip (9) for making the single-layer chain tooth strip (9) bite and / or disengage.

2. A double-layer expandable multi-chain zipper according to claim 1, characterized in that: The first chain tooth row (7) comprises a pair of parallel chain tooth strips, symmetrically arranged on both sides of the fixed end (13); The second chain tooth row (8) comprises a pair of parallel chain tooth strips, which are symmetrically arranged on both sides of the second single-layer cloth tape (2).

3. The double-layer expandable multi-chain zipper according to claim 1, characterized in that: There are two pullers between the cloth tape group (1) and the second single-layer cloth tape (2), namely a first puller (4) and a second puller (5); When the first slider (4) and the second slider (5) are pulled toward opposite directions along the first chain tooth row (7) and the second chain tooth row (8), the first chain tooth row (7) and the second chain tooth row (8) are engaged with each other; When the first slider (4) and the second slider (5) are pulled along the first chain tooth row (7) and the second chain tooth row (8) in opposite directions, the first chain tooth row (7) and the second chain tooth row (8) are disengaged from each other.

4. The double-layer expandable multi-chain zipper according to claim 1, characterized in that: The expansion tape (11) is an elastic expansion tape.

5. A double-layer expandable multi-chain zipper according to claim 4, characterized in that: The side of the first single-layer cloth tape (12) facing away from the extended cloth tape (11) is defined as the front side, and the side facing the extended cloth tape (11) is defined as the back side, and the first slider (4) and the second slider (5) are provided with pull noses for installing pull tabs, and the pull noses of the first slider (4) and the second slider (5) face the front side.

6. A double-layer expandable multi-chain zipper according to claim 5, characterized in that: The single chain tooth strip (9) is arranged toward the extended cloth tape (11), and the projection of the single chain tooth strip (9) toward the reverse side falls on the extended cloth tape (11), and the third slider (6) is provided with a pull nose for installing a pull tab, and the pull nose of the third slider (6) faces the front side.

7. The double-layer expandable multi-chain zipper according to claim 4, characterized in that: The extension direction of the single chain tooth strip (9) is parallel to the extension direction of the first chain tooth row (7).

8. The double-layer expandable multi-chain zipper according to claim 7, characterized in that: The extending direction of the single chain tooth strip (9) is defined as the length direction, and the direction from the first single-layer cloth tape (12) to the third single-layer cloth tape (3) is defined as the width direction; The width of the extended fabric tape (11) is greater than the sum of the widths of the first single-layer fabric tape (12) and the third single-layer fabric tape (3).

9. The double-layer expandable multi-chain zipper according to claim 1, characterized in that: The fixed end (13) is configured as a needle-and-thread suturing fixed connection.

10. The double-layer expandable multi-chain zipper according to claim 1, characterized in that: The width of the expanded and retractable cloth belt (11) is greater than the width of the second single-layer cloth belt (2) and the third single-layer cloth belt (3).

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